3White IV, Panjabi MM. Clinical biomechanics of the spine [ M]. Philadelphia:JB Lippincott,1990:342-351.
4Farfan HF. Mechanic, al disorder of low back [ M ] .Philadelphia: Lea&Febiger, 1973:8 - 25.
5Madan S, Boeree NR. Outcome of posterior lumbar interbody fusion versus posterolateral fusion for spondylolytic spondylolisthesis [ J ]. Spine ,2002,14 : 1536 - 1542.
6Jeremy C, Praveen V, Regis W. Current treatment strategies for the painful lumbar motion segment : posterolateral fusion versus interbody fusion [ J ]. Spine, 2005,16:533 - 543.
7Lee SW, Lim TH, You JW, et al. Biomechanical efleet of anterior grafting devices on the rotational stability of spinal constructs [ J]. Spinal Disord ,2000,2 : 150 - 155.
8Tagil M. The morselized and impacted bone graft: animals experi- ments on proteins, impaction and load[ J ]. Acta Orthop Seand Supp, 2000,9:31 -35.